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AWS BCo-1 vs. EN 1.3551 Steel

AWS BCo-1 belongs to the cobalt alloys classification, while EN 1.3551 steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AWS BCo-1 and the bottom bar is EN 1.3551 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.3
0.29
Shear Modulus, GPa 78
75
Tensile Strength: Ultimate (UTS), MPa 700
720

Thermal Properties

Latent Heat of Fusion, J/g 420
260
Melting Completion (Liquidus), °C 1150
1490
Melting Onset (Solidus), °C 1120
1450
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 8.0
4.9
Embodied Energy, MJ/kg 110
71
Embodied Water, L/kg 430
82

Common Calculations

Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24
26
Strength to Weight: Bending, points 22
23
Thermal Shock Resistance, points 21
21

Alloy Composition

Aluminum (Al), % 0 to 0.050
0
Boron (B), % 0.7 to 0.9
0
Carbon (C), % 0.35 to 0.45
0.77 to 0.85
Chromium (Cr), % 18 to 20
3.9 to 4.3
Cobalt (Co), % 46 to 54
0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 0 to 1.0
88.8 to 91.1
Manganese (Mn), % 0
0.15 to 0.35
Molybdenum (Mo), % 0
4.0 to 4.5
Nickel (Ni), % 16 to 18
0
Phosphorus (P), % 0 to 0.020
0 to 0.025
Selenium (Se), % 0 to 0.0050
0
Silicon (Si), % 7.5 to 8.5
0 to 0.4
Sulfur (S), % 0 to 0.020
0 to 0.015
Titanium (Ti), % 0 to 0.050
0
Tungsten (W), % 3.5 to 4.5
0 to 0.25
Vanadium (V), % 0
0.9 to 1.1
Zirconium (Zr), % 0 to 0.050
0
Residuals, % 0 to 0.5
0